What is the primary purpose of visual signals in a formation flight?

The primary purpose of visual signals in a formation flight is to ensure safety when radio use is limited. In formation flying, effective communication is crucial for maintaining safety and coordination among pilots. Visual signals serve as an important alternative to radio communication, especially in situations where radio silence is required or where radio failure occurs. By using visual signals, pilots can convey important information regarding their intentions, maneuvers, and changes in formation, all while maintaining a clear line of sight with other aircraft.

While enhancing communication and indicating formation changes could also be considered valid aspects of visual signals, the foundational role they play is rooted in maintaining safety in the absence of reliable radio communication. This emphasizes the critical nature of visual signals in ensuring that all pilots in a formation are aware of each other's actions, thereby minimizing the risk of accidents or miscommunication. Expressing pilot satisfaction, while possibly a consideration, is not a primary function of visual signals in the context of formation flight.